Segmented Hail Sensor Layout for Accurate Impact Detection
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Solution Overview
Problem
Existing hail detection systems, particularly tactile systems, face challenges in accurately measuring hail impact due to superimposed shocks from multiple hailstones and conflicts between measurement area and accuracy, leading to reduced detection precision and increased costs.
Innovation Solution
A hail detection sensor with multiple smaller detection zones, each connected to a common ground for lightning protection, using capacitive displacement detection and elastic bodies to minimize hailstone accumulation, enabling accurate and economical hail impulse measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a large measurement surface is used for hail detection, then the measurement accuracy is improved, but the shock from multiple hailstones superimposes making accurate measurement difficult
Solution Approach 1:
The patent divides the measurement surface into multiple independent detection zones (Zone 1, Zone 2, etc.), each with its own force-bearing part and displacement detection device. This segmentation allows each zone to independently detect hail impacts without interference from others, preventing shock superposition while maintaining overall measurement accuracy through coordinated data from all zones.
2Reliability
If multiple detection zones are used to reduce shock superposition, then measurement reliability is improved, but device complexity increases
Solution Approach 1:
The patent merges multiple detection zones into a single integrated sensor assembly with a common base and unified structural support. The force-bearing parts are connected through elastic bodies to a shared base structure, and the displacement detection devices are coordinated through a unified measurement system. This merging approach reduces overall device complexity while maintaining the reliability benefits of multiple independent detection zones.
3Area of stationary object
If a large measurement surface is used, then hailstone detection coverage is improved, but grounding costs for lightning protection increase
Solution Approach 1:
The patent segments the measurement surface into multiple smaller detection zones, each with its own force-bearing part and elastic body connection to the base. This segmentation allows the grounding system to be distributed across multiple isolated connection points rather than requiring a single large-area grounding system, thereby reducing lightning protection costs while maintaining adequate detection coverage.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The sensor achieves high detection accuracy and cost-effectiveness by minimizing hailstone overlap, optimizing measurement area, and reducing grounding costs while ensuring lightning protection.
Implementation Method 1
an elastic body (23), and a force-bearing part (24) of a given mass, wherein the surface of the force-bearing part (24) is provided with a Zone 1 for the impact of the measured hail
Implementation Method 2
the displacement detection device is used to obtain a first signal reflecting the mechanical vibration generated by the impact of the force-bearing part
Implementation Method 3
at least one of the support (21) is fixed to the base (11) which is electrically conductive, each force-bearing part (24) is electrically connected to the base (11) and electrically connected to the earth through the base (11)
Data Source
AI summary
A hail detection sensor, comprising an electrically conductive base and a plurality of detection components; the detection component comprises a support, a displacement detection device, an elastic body and a force-bearing part, the surface of the force-bearing part has a Zone 1 being a conductor for impact of the measured hail the force-bearing part is fixed on the support through the elastic body, the displacement detection device is used to obtain a first signal reflecting mechanical vibration generated by the impacted force-bearing part. There is a gap between each Zone 1. The area of each Zone 1 is smaller than and the sum of the areas of each Zone 1 is larger than the standard hail density measurement area; at least one of the supports is fixed to the base, each force-bearing part is electrically connected to the base and electrically connected to earth through the base.